Epictetus — "If your mind is not polluted by these things, you will always be healthy."

"What, then, is the fruit of these doctrines? It is the same as that of a vine: leaves, then a blossom, then a ripe cluster. So here, first an appearance, then an impulse, then an act. And the fruit is…"

"The key is to keep company only with people who uplift you, whose presence calls forth your best."

"Some things are in our control and others are not. Things in our control are opinion, pursuit, desire, aversion, and, in a word, whatever are our own actions. Things not in our control are body, prope…"

"If anyone tells you that a certain person speaks ill of you, do not make excuses about what is said of you but answer, 'He was ignorant of my other faults, else he would not have mentioned these alone…"

"Don't just say you have read books. Show that through them you have learned to think more accurately, to be less of a slave to your passions, to be more tranquil and self-possessed. Speeches are one t…"